20111042011430 has 32 divisors (see below), whose sum is σ = 36752841746784. Its totient is φ = 7922442318336.

The previous prime is 20111042011399. The next prime is 20111042011433. The reversal of 20111042011430 is 3411024011102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20111042011433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56502152 + ... + 56856971.

It is an arithmetic number, because the mean of its divisors is an integer number (1148526304587).

Almost surely, 2^{20111042011430} is an apocalyptic number.

20111042011430 is a deficient number, since it is larger than the sum of its proper divisors (16641799735354).

20111042011430 is a wasteful number, since it uses less digits than its factorization.

20111042011430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113359400.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 20111042011430 its reverse (3411024011102), we get a palindrome (23522066022532).

The spelling of 20111042011430 in words is "twenty trillion, one hundred eleven billion, forty-two million, eleven thousand, four hundred thirty".